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Harold E. Bedell

TitleProfessor
InstitutionUniversity of Houston
DepartmentOptometry
Address4800 Calhoun Rd
Houston TX 77004
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    S15EY010354     (BEDELL, HAROLD E)Jul 2, 1993 - Jul 1, 1994
    NIH
    SMALL INSTRUMENTATION GRANT
    Role: Principal Investigator
    R01EY005068     (BEDELL, HAROLD E)Jul 1, 1984 - Sep 30, 2006
    NIH
    Preceptual Stability and Nystagmus
    Role: Principal Investigator

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    Collapse selected publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Mestre C, Bedell HE, D?az-Dout?n F, Pujol J, Gautier J. Characteristics of saccades during the near point of convergence test. Vision Res. 2021 10; 187:27-40. PMID: 34147850.
      Citations: 5     Fields:    Translation:Humans
    2. Bedell HE, Song S. High- and Low-contrast Letter Acuity during Image Motion in Normal Observers and Observers with Infantile Nystagmus Syndrome. Optom Vis Sci. 2021 02 01; 98(2):150-158. PMID: 33534376; PMCID: PMC7897239.
      Citations:    Fields:    Translation:Humans
    3. Marten-Ellis SM, Bedell HE. A Comparison of Foveal and Peripheral Contour Interaction and Crowding. Optom Vis Sci. 2021 01 01; 98(1):41-50. PMID: 33394930; PMCID: PMC7789234.
      Citations: 3     Fields:    Translation:Humans
    4. Pluh?cek F, Bedell HE, Siderov J, Kratkoczk? D. Technical Report: The Mechanism of Contour Interaction Differs in the Fovea and Periphery. Optom Vis Sci. 2020 12; 97(12):1053-1060. PMID: 33252543.
      Citations:    Fields:    Translation:Humans
    5. Pluh?cek F, Musilov? L, Bedell HE, Siderov J. Number of flankers influences foveal crowding and contour interaction differently. Vision Res. 2021 02; 179:9-18. PMID: 33271404.
      Citations: 4     Fields:    Translation:Humans
    6. Siderov J, Pluh?cek F, Bedell HE. Upturn of the contour-interaction function at small flanking bar-to-target separations. Vision Res. 2020 02; 167:1-7. PMID: 31877370.
      Citations: 2     Fields:    Translation:Humans
    7. Bedell HE, Siderov J, Pluh?cek F. Contrast Energy and Contour Interaction. Optom Vis Sci. 2019 12; 96(12):940-947. PMID: 31834154.
      Citations:    Fields:    Translation:Humans
    8. Gantz L, Sousou M, Gavrilov V, Bedell HE. Reading speed of patients with infantile nystagmus for text in different orientations. Vision Res. 2019 02; 155:17-23. PMID: 30590088.
      Citations: 2     Fields:    Translation:Humans
    9. Krishnan AK, Queener HM, Stevenson SB, Benoit JS, Bedell HE. Impact of simulated micro-scotomas on reading performance in central and peripheral retina. Exp Eye Res. 2019 06; 183:9-19. PMID: 29959926; PMCID: PMC7298809.
      Citations: 1     Fields:    Translation:Humans
    10. Chen T, Su B, Chen Z, Tong J, Bedell H, Song Z, Zhang B. The Associations among Metamorphopsia, Orientation Discrimination Threshold, and Retinal Layer Thickness in Patients with Idiopathic Epiretinal Membrane. Curr Eye Res. 2018 09; 43(9):1151-1159. PMID: 29804466.
      Citations: 1     Fields:    Translation:Humans
    11. Musilov? L, Pluh?cek F, Marten-Ellis SM, Bedell HE, Siderov J. Contour interaction under photopic and scotopic conditions. J Vis. 2018 06 01; 18(6):5. PMID: 30029215; PMCID: PMC6005630.
      Citations: 3     Fields:    Translation:Humans
    12. Mahadevan MS, Bedell HE, Stevenson SB. The influence of endogenous attention on contrast perception, contrast discrimination, and saccadic reaction time. Vision Res. 2018 02; 143:89-102. PMID: 29180106.
      Citations: 2     Fields:    Translation:Humans
    13. Krishnan AK, Bedell HE. Functional changes at the preferred retinal locus in subjects with bilateral central vision loss. Graefes Arch Clin Exp Ophthalmol. 2018 Jan; 256(1):29-37. PMID: 28971293.
      Citations: 6     Fields:    Translation:Humans
    14. Fu H, Zhang B, Tong J, Bedell H, Zhang H, Yang Y, Nie C, Luo Y, Liu X. Relationships of orientation discrimination threshold and visual acuity with macular lesions in age-related macular degeneration. PLoS One. 2017; 12(9):e0185070. PMID: 28922378; PMCID: PMC5602672.
      Citations: 2     Fields:    Translation:HumansCTClinical Trials
    15. Huynh D, Tripathy SP, Bedell HE, ?gmen H. The reference frame for encoding and retention of motion depends on stimulus set size. Atten Percept Psychophys. 2017 Apr; 79(3):888-910. PMID: 28092077.
      Citations: 5     Fields:    Translation:Humans
    16. Pratt JD, Stevenson SB, Bedell HE. Scotoma Visibility and Reading Rate with Bilateral Central Scotomas. Optom Vis Sci. 2017 03; 94(3):279-289. PMID: 28030516; PMCID: PMC5321850.
      Citations: 4     Fields:    Translation:Humans
    17. Bedell HE, Pratt JD, Krishnan A, Kisilevsky E, Brin TA, Gonz?lez EG, Steinbach MJ, Tarita-Nistor L. Repeatability of Nidek MP-1 Fixation Measurements in Patients With Bilateral Central Field Loss. Invest Ophthalmol Vis Sci. 2015 Apr; 56(4):2624-30. PMID: 25788656.
      Citations: 8     Fields:    Translation:Humans
    18. Bedell HE, Siderov J, Formankiewicz MA, Waugh SJ, Aydin S. Evidence for an eye-movement contribution to normal foveal crowding. Optom Vis Sci. 2015 Feb; 92(2):237-45. PMID: 25951481.
      Citations: 2     Fields:    Translation:Humans
    19. Tripathy SP, Cavanagh P, Bedell HE. Large crowding zones in peripheral vision for briefly presented stimuli. J Vis. 2014 Dec 30; 14(6):11. PMID: 25550071.
      Citations: 17     Fields:    Translation:Humans
    20. Liu L, Wang YZ, Bedell HE. Visual-function tests for self-monitoring of age-related macular degeneration. Optom Vis Sci. 2014 Aug; 91(8):956-65. PMID: 24987816.
      Citations: 5     Fields:    Translation:Humans
    21. Pratt JD, Ohara JM, Woo SY, Bedell HE. Fixation locus in patients with bilateral central scotomas for targets that perceptually fill in. Optom Vis Sci. 2014 Mar; 91(3):312-21. PMID: 24413271; PMCID: PMC4535931.
      Citations: 1     Fields:    Translation:Humans
    22. ?gmen H, Ekiz O, Huynh D, Bedell HE, Tripathy SP. Bottlenecks of motion processing during a visual glance: the leaky flask model. PLoS One. 2013; 8(12):e83671. PMID: 24391806; PMCID: PMC3877086.
      Citations: 6     Fields:    Translation:Humans
    23. Siderov J, Waugh SJ, Bedell HE. Foveal contour interaction on the edge: response to 'Letter-to-the-Editor' by Drs. Coates and Levi. Vision Res. 2014 Mar; 96:145-8. PMID: 24384404.
      Citations: 4     Fields:    Translation:Humans
    24. Shi Y, Applegate RA, Wei X, Ravikumar A, Bedell HE. Registration tolerance of a custom correction to maintain visual acuity. Optom Vis Sci. 2013 Dec; 90(12):1370-84. PMID: 24270593.
      Citations: 5     Fields:    Translation:Humans
    25. Ravikumar A, Marsack JD, Bedell HE, Shi Y, Applegate RA. Change in visual acuity is well correlated with change in image-quality metrics for both normal and keratoconic wavefront errors. J Vis. 2013 Nov 26; 13(13):28. PMID: 24281244; PMCID: PMC3842080.
      Citations: 20     Fields:    Translation:Humans
    26. Bedell HE, Siderov J, Waugh SJ, Zemanov? R, Pluh?cek F, Musilov? L. Contour interaction for foveal acuity targets at different luminances. Vision Res. 2013 Aug 30; 89:90-5. PMID: 23880125.
      Citations: 6     Fields:    Translation:Humans
    27. Shi Y, Queener HM, Marsack JD, Ravikumar A, Bedell HE, Applegate RA. Optimizing wavefront-guided corrections for highly aberrated eyes in the presence of registration uncertainty. J Vis. 2013 Jun 11; 13(7). PMID: 23757512; PMCID: PMC3680305.
      Citations: 7     Fields:    Translation:Humans
    28. Moulder MJ, Qian J, Bedell HE. Motion deblurring during pursuit tracking improves spatial-interval acuity. Vision Res. 2013 Apr 05; 81:6-11. PMID: 23402872; PMCID: PMC3637418.
      Citations: 2     Fields:    Translation:Humans
    29. Bedell HE, Stevenson SB. Eye movement testing in clinical examination. Vision Res. 2013 Sep 20; 90:32-7. PMID: 23416869.
      Citations: 17     Fields:    Translation:Humans
    30. Sridhar D, Bedell HE. Changes in perceived egocentric direction during symmetric vergence. Perception. 2013; 42(2):127-37. PMID: 23700952.
      Citations:    Fields:    Translation:Humans
    31. Ukwade MT, Bedell HE. Spatial-bisection acuity in infantile nystagmus. Vision Res. 2012 Jul 01; 64:1-6. PMID: 22595744; PMCID: PMC3396734.
      Citations: 5     Fields:    Translation:Humans
    32. Sridhar D, Bedell HE. Binocular retinal image differences influence eye-position signals for perceived visual direction. Vision Res. 2012 Jun 01; 62:220-7. PMID: 22560955; PMCID: PMC3374399.
      Citations: 2     Fields:    Translation:Humans
    33. Jackson DN, Bedell HE. Vertical heterophoria and susceptibility to visually induced motion sickness. Strabismus. 2012 Mar; 20(1):17-23. PMID: 22390327; PMCID: PMC3625960.
      Citations: 4     Fields:    Translation:Humans
    34. Qian J, Adeseye SA, Stevenson SB, Patel SS, Bedell HE. D(max) for stereoscopic depth perception with simulated monovision correction. Seeing Perceiving. 2012; 25(5):399-408. PMID: 21774871.
      Citations: 4     Fields:    Translation:Humans
    35. Ravikumar A, Applegate RA, Shi Y, Bedell HE. Six just-noticeable differences in retinal image quality in 1 line of visual acuity: toward quantification of happy versus unhappy patients with 20/20 acuity. J Cataract Refract Surg. 2011 Aug; 37(8):1523-9. PMID: 21782097; PMCID: PMC3587308.
      Citations: 15     Fields:    Translation:HumansCells
    36. Sridhar D, Bedell HE. Relative contributions of the two eyes to perceived egocentric visual direction in normal binocular vision. Vision Res. 2011 May 11; 51(9):1075-85. PMID: 21371491; PMCID: PMC3092072.
      Citations: 7     Fields:    Translation:Humans
    37. Bedell HE, Tong J, Aydin M. The perception of motion smear during eye and head movements. Vision Res. 2010 Dec; 50(24):2692-701. PMID: 20875444; PMCID: PMC2991377.
      Citations: 3     Fields:    Translation:Humans
    38. Gantz L, Bedell HE. Transfer of perceptual learning of depth discrimination between local and global stereograms. Vision Res. 2010 Aug 23; 50(18):1891-9. PMID: 20600234; PMCID: PMC2922406.
      Citations: 9     Fields:    Translation:Humans
    39. Shooner C, Tripathy SP, Bedell HE, Ogmen H. High-capacity, transient retention of direction-of-motion information for multiple moving objects. J Vis. 2010 Jun 01; 10(6):8. PMID: 20884557; PMCID: PMC3248821.
      Citations: 8     Fields:    Translation:Humans
    40. Tong J, Ramamurthy M, Patel SS, Vu-Yu LP, Bedell HE. The temporal impulse response function during smooth pursuit. Vision Res. 2009 Nov; 49(23):2835-42. PMID: 19706304; PMCID: PMC2783465.
      Citations: 4     Fields:    Translation:Humans
    41. Bedell HE, Tong J, Woo SY, House JR, Nguyen T. Orientation discrimination with macular changes associated with early AMD. Optom Vis Sci. 2009 May; 86(5):485-91. PMID: 19319009; PMCID: PMC2837926.
      Citations: 7     Fields:    Translation:Humans
    42. Bedell HE, Tong J. Asymmetrical perception of motion smear in infantile nystagmus. Vision Res. 2009 Jan; 49(2):262-7. PMID: 19010344.
      Citations: 7     Fields:    Translation:Humans
    43. Hariharan-Vilupuru S, Bedell HE. The perceived visual direction of monocular objects in random-dot stereograms is influenced by perceived depth and allelotropia. Vision Res. 2009 Jan; 49(2):190-201. PMID: 18992271.
      Citations: 2     Fields:    Translation:Humans
    44. Tong J, Stevenson SB, Bedell HE. Signals of eye-muscle proprioception modulate perceived motion smear. J Vis. 2008 Oct 23; 8(14):7.1-6. PMID: 19146308.
      Citations: 5     Fields:    Translation:Humans
    45. Tong J, Lien TC, Cisarik PM, Bedell HE. Motion sensitivity during fixation in straight-ahead and lateral eccentric gaze. Exp Brain Res. 2008 Sep; 190(2):189-200. PMID: 18584163.
      Citations:    Fields:    Translation:Humans
    46. Bedell HE, Ramamurthy M, Patel SS, Subramaniam S, Vu-Yu LP, Tong J. The temporal impulse response function in infantile nystagmus. Vision Res. 2008 Jul; 48(15):1575-83. PMID: 18550143; PMCID: PMC2532591.
      Citations: 2     Fields:    Translation:Humans
    47. Tong J, Aydin M, Bedell HE. Direction and extent of perceived motion smear during pursuit eye movement. Vision Res. 2007 Mar; 47(7):1011-9. PMID: 17239420.
      Citations: 8     Fields:    Translation:Humans
    48. Chung ST, Patel SS, Bedell HE, Yilmaz O. Spatial and temporal properties of the illusory motion-induced position shift for drifting stimuli. Vision Res. 2007 Jan; 47(2):231-43. PMID: 17190608; PMCID: PMC2734886.
      Citations: 19     Fields:    Translation:HumansCTClinical Trials
    49. Tong J, Aydin M, Bedell HE. Direction-of-motion discrimination is facilitated by visible motion smear. Percept Psychophys. 2007 Jan; 69(1):48-55. PMID: 17515215.
      Citations: 8     Fields:    Translation:Humans
    50. Tong J, Patel SS, Bedell HE. The attenuation of perceived motion smear during combined eye and head movements. Vision Res. 2006 Dec; 46(26):4387-97. PMID: 17046046; PMCID: PMC1752240.
      Citations: 8     Fields:    Translation:Humans
    51. Woo S, Bedell HE. Beating the beat: reading can be faster than the frequency of eye movements in persons with congenital nystagmus. Optom Vis Sci. 2006 Aug; 83(8):559-71. PMID: 16909075.
      Citations: 5     Fields:    Translation:Humans
    52. Bedell HE. Visual and perceptual consequences of congenital nystagmus. Semin Ophthalmol. 2006 Apr-Jun; 21(2):91-5. PMID: 16702076.
      Citations: 6     Fields:    Translation:Humans
    53. Wang M, Bedell HE. Asymmetrical vertical phorias in normal subjects: the influence of unbalanced illumination. Strabismus. 2005 Sep; 13(3):123-8. PMID: 16251141.
      Citations: 3     Fields:    Translation:Humans
    54. Patel SS, Bedell HE, Sampat P. Pooling signals from vertically and non-vertically orientation-tuned disparity mechanisms in human stereopsis. Vision Res. 2006 Jan; 46(1-2):1-13. PMID: 16129469.
      Citations: 7     Fields:    Translation:Humans
    55. Bedell HE, Patel SS. Attenuation of perceived motion smear during the vestibulo-ocular reflex. Vision Res. 2005 Jul; 45(16):2191-200. PMID: 15845249.
      Citations: 5     Fields:    Translation:Humans
    56. Tong J, Patel SS, Bedell HE. Asymmetry of perceived motion smear during head and eye movements: evidence for a dichotomous neural categorization of retinal image motion. Vision Res. 2005 Jun; 45(12):1519-24. PMID: 15781070.
      Citations: 9     Fields:    Translation:HumansCells
    57. Ramamurthy M, Bedell HE, Patel SS. Stereothresholds for moving line stimuli for a range of velocities. Vision Res. 2005 Mar; 45(6):789-99. PMID: 15639505.
      Citations: 6     Fields:    Translation:Humans
    58. Bedell HE, Chung ST, Patel SS. Attenuation of perceived motion smear during vergence and pursuit tracking. Vision Res. 2004 Apr; 44(9):895-902. PMID: 14992833; PMCID: PMC2729068.
      Citations: 6     Fields:    Translation:Humans
    59. Ogmen H, Patel SS, Bedell HE, Camuz K. Differential latencies and the dynamics of the position computation process for moving targets, assessed with the flash-lag effect. Vision Res. 2004; 44(18):2109-28. PMID: 15183678.
      Citations: 21     Fields:    Translation:Humans
    60. Purushothaman G, Ogmen H, Bedell HE. Suprathreshold intrinsic dynamics of the human visual system. Neural Comput. 2003 Dec; 15(12):2883-908. PMID: 14629872.
      Citations: 2     Fields:    Translation:HumansCells
    61. Patel SS, Ukwade MT, Stevenson SB, Bedell HE, Sampath V, Ogmen H. Stereoscopic depth perception from oblique phase disparities. Vision Res. 2003 Nov; 43(24):2479-92. PMID: 13129536.
      Citations: 9     Fields:    Translation:Humans
    62. Bedell HE, Chung ST, Ogmen H, Patel SS. Color and motion: which is the tortoise and which is the hare? Vision Res. 2003 Oct; 43(23):2403-12. PMID: 12972391.
      Citations: 13     Fields:    Translation:Humans
    63. Patel SS, Ukwade MT, Bedell HE, Sampath V. Near stereothresholds measured with random-dot stereograms using phase disparities. Optometry. 2003 Jul; 74(7):453-62. PMID: 12877278.
      Citations: 1     Fields:    Translation:Humans
    64. Chung ST, Bedell HE. Velocity dependence of Vernier and letter acuity for band-pass filtered moving stimuli. Vision Res. 2003 Mar; 43(6):669-82. PMID: 12604103.
      Citations: 8     Fields:    Translation:Humans
    65. Ukwade MT, Bedell HE, Harwerth RS. Stereothresholds with simulated vergence variability and constant error. Vision Res. 2003 Jan; 43(2):195-204. PMID: 12536141.
      Citations: 2     Fields:    Translation:Humans
    66. Ukwade MT, Bedell HE, Harwerth RS. Stereopsis is perturbed by vergence error. Vision Res. 2003 Jan; 43(2):181-93. PMID: 12536140.
      Citations: 12     Fields:    Translation:Humans
    67. Ukwade MT, Bedell HE, White JM. Orientation discrimination and variability of torsional eye position in congenital nystagmus. Vision Res. 2002 Sep; 42(20):2395-407. PMID: 12350426.
      Citations: 3     Fields:    Translation:Humans
    68. Purushothaman G, Lacassagne D, Bedell HE, Ogmen H. Effect of exposure duration, contrast and base blur on coding and discrimination of edges. Spat Vis. 2002; 15(3):341-76. PMID: 12116994.
      Citations: 1     Fields:    Translation:Humans
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